Coke-extractor.



No. 803,586. PATENTED NOV. 7, 1905. J. S. HAM.

COKE EXTRACTOR.

APPLICATION num m5, 1905.

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WITNESSES: INVENTOR No. 803,586. PATENTED NOV. 7, 1905. J. S. HAM.

COKE EXTRAOTOR.

APPLICATION HLED APB- 5. 1905.

5 SHEETS-'SHEET 3.

WTNESSESZ INVENTR PATENTED NOV. 7, 1905.

J. S. HAM.

COKE BXTRAGTOR.

APPLIOATION FILED Amm. 190s.

5 SHEETS-SHEET 4.

llillllillllllIHIIIIIIIIIIIIIII|l||||lllllllllllllllllllllIIIIIIIIIIIIII INVENTR o/m By /zs Attorney,

WITNESSES:

UNITED STATES PATENT OFFICE.

JOHN S. HAM, OF COVINGTON, VIRGINIA, ASSIGNOR TO COVINGTON IVIACHINECOMPANY, A CORPORATION OF VIRGINIA.

COKE-EXTRACTOR.

Specification of Letters Patent.

Patented Nov. '7, 1905.

Application iled April 5, 1905. Serial No. 253,937.

T0 @ZZ whom it may concern:

Be it known that I, JOHN S. HAM, a citizen of the United States, and aresident of Covington, lin the county of Alleghany, State of Virginia,have invented certain new anduseful Improvements in Coke-Extractors, ofwhich the following is a specification.

My invention relates to improvements in machinery for the extraction ofcoke Jfrom coke-ovens, and more particularly to that class of machine inwhich a plate or shovel is forced through the door of the oven and underthe coke and then withdraws it, either by pushing it out of a door onthe opposite side of the oven, or else by carrying it out of the doorthrough which the tool or shovel is inserted.

It relates particularly to that class of machinery in which the toolwhich removes the coke from the oven is carried upon a carriage movingon a track in front oi' a series of ovens, which carriage by means ofappro. priate mechanism is caused to travel in front of the ovens and byappropriate mechanism to insert and withdraw the tool and so to move ithorizontally and'vertically that all parts of the oven in successionwill be subjected to its effect. In this particular class ofcoke-extractor the plate or shovel is invariably attached to a bar orram, which bar or ram-slidesin an appropriate ram-carriage betweenrollers and is necessarily of such length that the shovel or plateattached to it may reach the most remote parts ofthe coke-ovens. Theconsequence is that when the bar or ram is retracted it ordinarilyprojects a considerable distance outward in the rear of the machine. Inthe case of' large ovens the bar is necessarily very long, and hencegreat dithculty has been experienced in using machines of this class inconnection with and in front oi' large coke-ovens where the space infront oi' the oven is limited, for the reason that the retraction of along bar or ram occupies very often more space than is available for theeconomical use of this class of machine. Now I have discovered thatwhere the rear end of the bar or ram is composed of two or morearticulated portions one of which is hinged at a point as near to therear of the machine as possible after the ram has emerged from theram-carriage during the operation of retraction and appropriatemechanism is provided for lifting, lowering, or deflecting to `rear endof the bar.

the right or left the rear portions on the articulated joints it ispossible to use a cokeextractor of this character in a comparativelynarrow space in front of and in connection with very large coke-ovens,and thereby effecting great economy in yard vspace and making itpossible to run cars directly back of the coke-extractor and effectloading thereof by means of a large variety of devices which havehitherto been incapable of use on account of the large amount of spacetaken up by the long ram retracted. Again, in certain cases coke-ovensare so constructed as to not permit of suficient space between lines ofovens for the use of a machine having a long ram or bar. In such casesthe present invention is particularly valuable, as it permits the use ofthe machine without disturbing the ovens.

The gist of the invention consists in providing a ram or bar which isrigid between the bed of the extractor and the coke-oven and flexiblewhen in a position beyond in the rear of the extractor, so that when thebar is brought back it may be de'fiected from a right line and travelinside of a space which is less than the total length of the bar. Thisbar or ram may be of two or more parts and jointed together, and it mayswing up. down, to the right, or to the left, as may be convenient; butin practice it is preferable to swing it upward.

The invention will be best understood by reference to the accompanyinglive sheets of drawings, in which- Figure l is a vertical end view,partly in cross-section, of a coke-extracting machine of the type shownin the United States Letters Patent issued to William H. McConnell, No.768,067, on the 23d dayof August, 1904, embodying the present invention,and in which the articulated end of the bar or ram is raised by means ofa chain automatically. Figs. 2, 3, and I aredetailed views of theconstruction of the articulated joints of the ram or bar, showing themethods of joining the articulated portions. Figs. 5, 6, and 7 aredetailed views of a hand mechanism for raising the rear end of the ramor bar after retraction. Fig. 8 is a view of a device for lowering theFigs. 9, 10, and ll are views of the mechanism or parts thereof fordeiiecting the articulated end of the bar horizontally to one side, Fig.ll being a view on IOO the line Y Z of Fig'. 10 looking in the directionindicated bythe arrows.

Similar characters refer to similar parts throughout the several views.

In the drawings, A represents the bed-plate of the machine, which ismade rectangular in form and is of the same general type of bedplate asshown in the aforesaid patent. This is mounted on the pedestals T, whichin turn are mounted on the wheels WV on the axles C.

S represents the rails upon which the extractor moves, placed in frontof the series of furnaces upon ties K.

B is the bar or ram of the coke-removing tool, attached to which, at oneend, is a scoop or shovel E. The ram B is mounted upon ahorizontally-rotating ram -carriag'e D, as shown in Fig. 1 and in thepatent above referred to, and arranged to slide therein in a series ofvertical rollers 2 2, which rotate in appropriate boxes inserted in thetop and bottom plates 3 3 of the carriage D, as shown in Fig. 1. The ramis supported underneath at either end by two horizontal rollers 1 l,which are supported in appropriate extension-pieces, and the ram is heldin place on top by two rollers 5 5, also at either end on top of it. Avariety of devices may be used for controlling' the movement of andactuating' the ram; but these play no part in the present invention.

The rod, arm, or bar B, as shown in the drawings, in the present case iscomposed of two parts 6 and 7, although any number may be used, ifdesired, and is provided on either side with the toothed rack 8, asshown in Figs. 2, 3, and 4:. The two portions 6 and 7 are dovetailed ateither end, as shown in Figs. 2 and 3, and beveled, as shown, the part 7being provided with the shoulders lO, which move in grooves 13 on thesurface of the part 6. The toothed racks 8 on the parts 6 and 7 engag'ewith each other and are strengthened in position by means of a shoulder15, engaging' with the corresponding recess 16 on the other portion ofthe rack 8, attached to part 7. A pivot K holds the two parts 6 and 7together, and in this way the bar when it drops becomes and is heldrigid, for the reason that the extremities of the two portions 4 and 5are beveled, as shown by the dotted lines 18 to 20, inclusive, andengage, as there shown. Any other mechanism for effecting an articulatejoint between the various parts may be employed.

In cases where the rear end of the bar B is lifted it may beaccomplished by any desirable mechanism, but in practice the deviceshown in Fig. 1 is preferable. This consists of an upright post F ofappropriate height placed at the rear of the carriage D, the upper endof which is connected rigidly at one or more points by one or morechains 12, attached to the rear part 7 of the bar B. When the bar Bbegins to be retracted by the action of the machine at the moment whenthe articulate joint passes out from under the roller 5, the post Fbeing stationary and of sufficient height, the effect of the chain 12 isto raise the end of the bar to the position shown in Fig. 1. Anotherform of mechanism .which may be employed and which will be found{,)articularly useful in cases where the movable end of the bar consistsof one or more articulated'joints is shown in Figs. 5, 6, and 7. Thisconsists of shaft 9, supported on frame F F, placed at the rear of thecarriage D. The movement of the shaft is effected in one direction bymeans of a weight H, attached to a cord 24, passing' around a pulley atone end of the shaft 9. The shaft 9 carries at its extremity ahand-wheel I, by means of which it is turned in one direction, and aratchet 21 and apawl 22 control the movement of the shaft as it isturned. The shaft carries a second drum 11, to which one end of the cord12 is attached, the other end of which is attached to the rear part 7 ofthe bar B. ln the operation of this construction when the bar B beginsto be retracted by the action of the machine at the moment when thearticulate joint passes out from under the roller 5 the operator turnsthe wheel I, and the effect of the weight H, acting upon the shaft 9, isto wind up the cord 12 on the drum 1l and raise the bar to the positionshown by the dotted lines in Fig. 5. I/Vhen the bar begins to moveforward, the ratchet 22 is tripped by an appropriate mechanism on themachine acting on the rod 23, and the weight of the bar -being greaterthan the weight H will cause the bar to fall upon being released and theweight H to assume the position shown in Fig. 5. The relation of theweight H to the portion 7 of the bar is such that the two willsubstantially balance each other, but so that the bar will rise and fallrapidly.

In the form of device shown in Fig. S'the bar is lowered instead ofbeing raised, and in this construction two rigid posts F and G areprovided,attached to the ram-carriage D. The post F carries a lever L,pivoted toit, as shown. On one end of this lever is carried a counterweig'ht H of appropriate weight, and the other end is attached to oneend of the chain 12, the other end of which chain is attached to theextremity of the movable part 7 of the bar 8. A second chain connectsthe end 7 of the bar 8 with the lower end of the post G, as shown. Theinstant that the bar is retracted so that the joint K is moved clear ofthe rollers the chain 30 draws down the part 7, thereby lifting thecounterweight H through the arm L to the point shown by the dottedlines, and the articulated end of the bar drops, as shown by the dottedlines. When it is designed to raise the end of the bar, the weight H ismoved downward and the bar will be restored to its initial position.

Still another form of device which may be employed where the bar ismoved sidewise is IOO IOS

IIO

IZO

shown in Figs. 9, 10, and 11. This consists of a permanent extended armF of appropriate length, the end of which is connected with the movableend of the bar by'a chain 12, similar to that employed in theconstruction shown in Fig. 1. In this construction the movable end ofthe bar is supported on an appropriately-formed track M by means of theroller 27 and is guided along the flange of the track by guide-roller28, as shown in Figs. 10 and 11. Vhen the bar is retracted, the effectof the force exerted from the permanent bar F, which is stationary andof sufficient length through the chain 12, is to move the end of the barto one side, as shown in Fig. 9.

I claim as my invention 1. In a coke-extractor the combination of atruck mounted on wheels, a ram-carriage arranged to rotate on the truckand a ram or bar arranged to move horizontally therein, the rear end ofwhich is composed of parts joined together so that the ram is rigid atthe end toward the coke-oven, and rigid or flexible at the outer end asmay be desired.

2. In a coke-extractor, the combination of a truck mounted on wheels, aram-carriage, arranged to rotate on the truck, a ram or bar arranged tomove horizontally therein, the rear end of which is composed of partsjoined together so that the ram is rigid at the end toward thecoke-oven, and rigid or flexible at the outer end as may be desired, andmeans for deflecting the end of said bar from a right line so that thebar may be retracted in a space which is less than the total length ofthe bar.

3. In a coke-extractor, the combination ot' a truck mounted on wheels, aram-carriage arranged to rotate on the truck and a ram or bar arrangedto move horizontally therein, the rear end of which is composed or' aplurality of parts each connected by articulate joints so arranged thatthey are rigidly connected when the bar is being advanced or retractedor in its horizontal position; and when desired one or more portions maybe retracted in a space which is less than the total length of said bar.

, 4. In a coke-extractor, the combination of a truck mounted on wheels,a ram-carriage arranged to rotate on the truck, a ram or bar arranged tomove horizontally therein, the rear end of which is composed ofarticulate parts so arranged as to form a rigid bar while the bar isbeing advanced or retracted and means substantially as described fordetlecting the rear end of the bar from a right line on the articulatejoints.

5. In a coke-extractor, a ram or bar arranged to slide in a suitablecarriage rotating on the frame of the machine, composed of two separateparts connected by an articulate joint so arranged that they are rigidlyconnected when the bar is being advanced or retracted and one portionmay be raised or lowered with respect to the other when the bar isretracted.

6. In a coke-extractor, the combination of a truck mounted on wheels, aram-carriage arranged to rotate on the truck, a ram or bar arranged tomove horizontally therein, composed of two articulate parts so engagingas to form a rigid bar while the bar is being ad vanced or retracted,and means substantially as described for raising or lowering the eX-tremity of the bar on the articulate joint when the bar is retracted.

7. In a coke-extractor, the combination of a truck mounted on wheels, aram-carriage arranged to rotate on the truck, a ram or bar arranged tomove horizontally therein, composed of two articulate parts so engagingas to form a rigid bar while the bar is advanced or retracted, and meanssubstantially as described for raising or lowering the extremity of thebar on the articulate joint when the bar is retracted, and for causingthe bar to become rigid when the operation of the machine recommences.

8. In a coke-extractor, the combination of a Suitable rain-carriage, aram or bar arranged to move horizontally therein, composed of twoarticulate parts, so engaging as to form a rigid bar while the bar isbeing advanced or retracted, a post fixed to the ram-carriage and ofappropriate height, and a chain attached at one end to the post and atthe other end to the movable end ot' the bar for raising the same.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of two witnesses, this 23d day of January, 1905.

JOHN S. HAM. Witnesses:

VVILLARD PARKER BUTLER, JOHN FRENCH.

